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- Table of Contents
Facts about Astacin-like metalloendopeptidase.
Probably functions as a protease for the post-fertilization cleavage of ZP2. Cleaves the sperm-binding ZP2 at the surface of the zona pellucida after fertilization and cortical granule exocytosis, rendering the zona pellucida unable to encourage additional sperm binding.
| Mouse | |
|---|---|
| Gene Name: | Astl |
| Uniprot: | Q6HA09 |
| Entrez: | 215095 |

| Belongs to: |
|---|
| No superfamily |

astacin-like metallo-endopeptidase (M12 family); Astacin-Like Metalloendopeptidase; ASTL; Oocyte Astacin; Ovastacin
Mass (kDA):
47.455 kDA

| Mouse | |
|---|---|
| Location: | 2|2 F1 |
| Sequence: | 2; |
Ovary-specific. Expressed in secondary, antral and Graafian follicle oocytes. Expressed in the egg cells. Not detected in two-cell embryos. Not detected in naked oocytes, oocytes in primordial or unilaminar primary follicles, or in any other ovarian cells at pre-pubertal, pubertal or adult stages (at protein level). Ovary-specific.



PMID: 15087446 by Quesada V., et al. Identification and characterization of human and mouse ovastacin, a novel metalloproteinase similar to hatching enzymes from arthropods, birds, amphibians, and fish.
PMID: 22206759 by Sachdev M., et al. Oocyte specific oolemmal SAS1B involved in sperm binding through intra-acrosomal SLLP1 during fertilization.